Clive Bull is Leading Britain's Conversation, including the Health Hour from 9pm
12 January 2017, 11:37
Gerard Coyne is taking on Len McCluskey to be the boss of Britain's biggest trade union Unite - Nick asked him what he plans to do if he wins.
Coyne is pledging to "clean up" the trade union.
It's a big promise so Nick had a simple question for him - what exactly does he mean?
More to follow...